Combined cotton recleaner and gin



April 1929- J. E. MITCHELL ET AL COMBINED COTTON RECLEANER AND GIN Filed Dec. '30, 1927 2 Sheets-Sheet JOHN E. M/ TCHELJ. 0,9 1/

EYS.

April 23, 1929. MlTcHELL ET AL 1,710,061

COMBINED COTTON RECLEA NER AND GIN Filed Dec. 50, 1927 2 Sheets-Sheet 2 [/v VENTO/QS: JOHN E. M/ TCHELL. 0x2 VALLE N/TCflELA.

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Patented Apr. 23, 19219 inn-Ten sirATEs ILL .tlliili SEVILLE WIITUHELL, OF ST. LOUIS, MISSOURI.

COMBINED GOTTGN RECLEANEB, AND

xlpplicai'rlon flied Beeeniber 30, 192?. Serial No. 43,690.

'lhi 'in'entimi relates to gins of the huller ht qype, and has i'or its: general object the nrs'ix'ision t no means operating within lhe breast ot the nm for separ tine hulls and rush from their on Zen he tore it is carried t the r saws into the roll-box,

ii an applieaiion oi' John E. M be "oini in renters herein, tier. No. 211 317, l. ie'ust 8th, 192?, cleaning members we shown co-eperai'i with hulling ribs and 5 "1 portion oi" saws projecting a, 'ihe huiling;- r is lino the breast or v in and while that nvention is eii'ective Leaning: the whim, some di'iiiculty is enered in its use-b3 reason oi" the tact/that uliing ribs t xiv is beconie clogged nere the seed cotton ws through the spaees czrried by the n between the ribs and izpi the roll-box. In

t v, I. v .u' 1 1 "Uftfkilltilt- LllViEiblUllH oi LliG aid nohn it. tcheili rotatiii means were plYY-JMlOd for cleaning the hui rig: ribs at the ioint reiterred to and a i ineans have rliicientiy served the purpose except under unusual conditions,

e cotton contains too much such cases, COBM(l(1'2liI)iO ditis enwuuitered in getting suiheient an n 1101 ineriy supply the nine roll A it rotating; nouns For oieanithe eheracter referred an appiii' ion the said th, 192?, Ser. No.

e sced cotton itron'i hangi or a, being carried by the gin saws st of the gin into therolhbox is characterized, in this '2 1rd by the that the upper portion oi? the hnllingr providing; or e s tirrounjh which the seed co on is carried from the breast into the relis sdiniinate h and ribs are provided 0 ends terniinzuine" within the between the gin saws o side of the .r; ,e that. the teeth of the ;g'in saws, alter rotated, pass beyond the fire Ci-11.; of these ribs and move or some distance in the clear before entering the rollbox.

The ii'ivention isfurther characterized by the provision of a eleaning roller rotating in the same direction as the gin saivsand in pri Limit thereto, the point oi? closest approach of said cleaning roller to the gin saws 'chell, one

the spaces between the hullinvention is desi red I bein substantially at the line of termination breastef the gin and is adjustable to vary the size oi" said space This roller also functions to throw cotton onto the gin saws.

Finally. we provide a feed roller which receives vthe cotton fed into the breast of the gin and delivers the same tothe hull roller which latter, as stated throws the same onto the surface of the gin saws.

in the drawings:

ii igure i is a longitudinal sectional View through a grin c n1strueted according to our invention, the rear portion of the gin being broken aivay;

Figure 2 a view in side elevation on an enmrged scale of a portion of the gin illustra tin the manner of adjusting the ribs which co-opcrate with the gin saws, and also the or oi adjusting the hull roller; and t 4 is abroken sectional view looki the front orworl zing side oi the gin saw cylinder, further illustrating the means for adjusting the ribs.

Re icrringg now to the drawing, the numeral 1 indicates the casingof a gin, in which casing is provided a roll-box 2 and abreast by one wall 4: of theroil-box and the front wall 5 ot the casing. A seed gate 5 of "the usual coir-itruethm provided at the lower end of the wall at of the rollbo; Depending from the rear side of the roll-box is a series of ginningribs 6 which, as isual, pass 3 formed In the ordinary double-rib gin, a second series of ribs similar to the ribs 6 and known as hulling ribs, is provided, which are located nearer the periphery of the saws but which provide spaces of suiiicient width to permit the seeds to pass through them into the roll-box. The upper ends of these hulling ribs are iiiiedly secured to the lower end of the front wall 1 of the roll-box. As we haveabove pointed out, this arrang nent is objectionable on account oil the frequent clog ing o1" tae hulling ribs at the point where the gin saws pass between the same to enter the roll-box.

To overcome the disadvantage resulting from clogging of the hulling ribs, we provide ribs or guards 10 answering, generally, in purpose to that of he hulling ribs of prior constructions, but ditiering t ieretroin in that their upper ends 11 terminate below the roll-' box within the spaces between the gin saws so that the disks of the gin saws move away from the ends of these ribs and travel for some distance in the clear before entering the roll-box.

Co-operating with the ribs 10 and gin saws 7 is a cleaning roller 12 mounted to rotate in the same Clii'cCtlOll as the gin saws and in proximity thereto, so as to coi'it-inuously knock back any hulls or trash which ma 1 be carried up with the cotton engaged by the teeth 01' the gin saws. The point of closest a 3 )roach oi' the cleanin roller 12 to the inn saws is substantially at the line of termination of the upper tree ends 11 of the ribs 10. These ribs are secured at their lower ends to a cross-bar which is pivotaily IIlOlllltGCl by means of a rod 1& in opposite sides of the gin. Secured at each end of the cross-bar 13, isan arm 15 oi substantially the same shape and size as the ribs 10, one or said arms being shown in Fig. 3 and in dotted lines in Fig. 2. Each of these arms has a lateral projecting ineniber 16 extending through an elongated opening 17 in the side wall 18 of the gin, the member 16 having in its outer end a screwthreaded aperture receiving an. adjusting screw 19 rotatably mounted a small bracket 20 on the side oi the gin. Binding nuts 21 are mounted on the screw to engage, respectively, the bracket 20 and the outer side of he projecting member 16. the screw 19 in one direction or the other, the cross-bar 13 may be turned on its pivot 14 to move the ends 11bit the ribs 10 closer to or further from the cleaning roller 12 to vary the intensity of the action of the cleaning roller on the cotton.

Rotatably mounted by means or" a shaft 22 inthe lower part oi: the breast 3 is a hull roller 23, which defines the size of a passage 24 past the gin saw cylinder for the escape of loose hulls and trash fed into the machine or similar particles knocked back from Bv loosenin these nuts and turuin the cotton by the cleaning roller 12. The roller 23 1s adJust-able toward and from the gin saw cylinder to vary the size of the pas sage 24 and this is preferably accomplished in the following manner:

Each end of the shaft 22 passes through a relatively large circular opening 25 provided in the corresponding side wall of the gin and is rotatably mounted in a circular plate 26 which is larger in diameter than the opening 25 and operates to cover and close the same. This plate is provided near opposite sides 'ith coriespondingslots 2? which lit o'vcr screwt-hreaded projections 28 mounted on each side of the gin. The plate is secured in position by means of nuts 29 screwed on these projections. By loosening the nuts 25) and moving the plate in one direction or the other, the shaft with its roller may be adjusted toward or from the gin saw cylinder, after which the nuts 25) 2 3e screwed tight to hold the plates in their adjurted positions.

Mounted in the breast 23 ot the gin to one side (thelelt, as shown in F i 1) and slightly above the hull roller 23 a feed roller 30, which preferably rotates 'in an opposite direction to that of the hull roller 23 and optes to deliver the uncleaned or partially leaned cotton fed into the breast of the gin onto the hull roller 23which, in turn, throws onto the surface of the To in rotating. the effective distance between the screws would he, say one inch. These or similar projections will operate to positively remove and discharge from the breast.- any accun'iniation of trash which may form be tween the roller and the ribs 10 below the gin saws. The cleaning roller 12 and the ribs r guari'ls 10 provide a space 32 between them which extends the full length the gin saw cylinder, and the adjustment of the upper ends of the ribs 10 above described operates to widen or narrow this space, with the object of varying the severity of the cleaning action ottne roller12 while the seed cotton is being carried through this gag into the roll-box. The provision of this space 32. the fact that the sp ces between the ribs 10 are open at their upper ends, and the further fact that the ribs 10 terminate short oi the breast of the gin and into uhe roll-cox without breaking the lint.

lib)

Bio

In the case of theordinarv hulling ribs,

it is necessary for thesaws to iorcethe seed cotton through spaces between the hulling' ribs, and a certain amount of machining or breaking;- of the fibres takes place by reason of two or more saws engaging the same lock of cotton, each carr ing a portion of it through dii'erent sauces between the ribs, and. a portion of the iibrcs torn loose from those carried through by the saws lodge on the ribs, causing them to clog up in the inanne" al feady referred to. i

In the case of our invention, it will be seen i. lat such an action es last described. is imi ossible beczuise the teeth oi th saws never pass between the ribs 10 and, therefore, no obstruction to the nu Veinent ot the cotton aired by the teeth oi the saws is presented. At the name thin, the cleaning roller will operate to knock back i nv pieces of hulls and trash :ulherine to the cotton, and the intensity oi this EiCtH n may be regulated by ad- ;uyzhng; the ends of tl e ribs 10 toward or i .c i from the cleaning cyli nier in. the manner previously described.

The numeral i; 3 indicates a i,\*( tei'l gate or door which may he swungopen tog'ive access to the interior oi the breast ot the gin. ih-e'i'erably t the upper end. of this gate we provide an angle bar 3% which acts in core junction with the teed roller 30 as a breaker to crush any boils which may he ted into the gin.

in the ordinary plain gin, that is, where no provision is made for cleaning; he cotton he fore it enters the roll-box, the seed cotton :i'eddirectly into the roll-box through the top thereof. in the huller lnieast type ol gin here illustrated, the cotton is -ted into the breast of the gin and hence enters the roll-box through the bottom thereoi past the seed gate. The

scedje'aic 5. therefore, may be considered as defining,

rou j hlv the bottom of the rollbox. 1 the need cotton accumulates in the rr ll-bo;, it is caused to rotate and the seeds .i'rced iron'i the h t, fall out of the roli-box the end of t e seed grace and at points beyond the seed ,e', te and slide down the gin nine ribs (5 in the spaces between the saws and out of the n'iachin a. It is necessity oi the operation ot such a grin therefore, that the path for the seeds out oil the roll-box; sh all he unobstructed.

This provision tor the free escape of the seeds lroin the roll-box past the seed gate is retained in our construction in that, in the. priiierred en'ibodiinent thereof as shown in the d 'awing, the ribs 10 terminate below the roll-box or, n'iore specifically. below the seer gate 5. Thus, seeds euca 'iing from the rollbox a t or beyond the end of the seed gate, or even through the bars oi the seed. grate, as sometimes happens, will pass over the tree ends of the ribs 10 and tall past or over the ginning ribs 6 in the usual. manner.

peer

The upper ends of the ribs 10 could ternii ate at a point somewhat higher than that throws it onto the gin saws 7 on the portion thereof p rejecting into the breast through the spaces between the ribs 10. The cotton is, of cinirse, engaged and carried up by the gin saws 7 and any bulls and trash are knocked back'by the cleaning roller 12. The bulls and trash are discharged through the passageQi and any .ioose locks oi cotton thrown oil by the cleaning roller 12, together, o'tcoujrse, with the cotton being'ited into the breast of the gin, is again thrown by the roller .ZS'onto the save. The action of the gin saws on toe seed cotton within the roll-box 2 is not described as it may proceed in the ordi-c nary n auner, so in 7' a s the present invention is concerned.

i i e claim: e

1. In a cotton gin providing: a roll-box, cleaning niechanir-iin locate l in the breast e' the gin comprising, in con'ibination with the gin saws, ribs secured at their lower ends and, extending between the saws and having upper tree ends terminating below the entrance from the breast'of the gin into the roll-box, there being on urnibstructed space from, the ends oi" said ribs into Silltl roll-box traversed, by die grin saws, and a cleaning roller rotal in the same direction as the gin saws and proxin'iity thereto. 7

2. In a cotton gin providing a roll-hox. cleaning; mechanism located in the breast oi comprising, in, (:oinbination with the n saws, ribs sccu ed at their lower ends end extending; between the saws a 1d having); up-

from the breast of the gin into the roll-b there being: an unobstructed space from 1e ends on said ribs into said roll-ho}: traversed by the gin saws, and a cleaning roller rotat ing in the same direction as the gin saws and in proximity thereto and to the free ends of said ribs 3. in a cotton gin providing a roll-ho (leaning u'iechnnisin locatei'i in the breast of the gin connirising, in con'ibination with the grin saws, ribs secured at their lower ends and extending between the saws and having upper free ends tern'rinating in the spaces between the saw, at a point below the entrance from the breast of the gin into said roll-box, there being an unobstructed space from the ends of said ribs into said roll-box tranversed by the gin saws, the disks of the gin saws in rotating, passing out of the spaces belit) ' imity thereto tween the ribs at their open ends, and a cleaning roller rotating in the same direction as the gin saws ano in proximity thereto and to the free ends of said ribs.

In a cotton gin providing a roll-box, cleaning mechanism located in the breast oi the gin comprising, in combination with the gin saws, ribs secured at their lower ends and extending between the saws and having upper free ends terminating in the spaces between the saws below tie roll-box, there being an unobstructed space from the ends of said ribs into said roll-be; traversed by the gin saws, a cleaning roller rotatin in the same direction as the gin saws and in proxat substantially the line of termination of the free ends of said ribs,and

,means for simultaneously adjusting the upper ends of all of said ribs towarcor from said cleaning roller.

In a cotton gin pr riding a roll-box, cleaning mechanism located in the breast of the gin comprising, in eon'ibination w th the gin saws, a cleaning roller rot g in prox imity thereto and in the same dn ction, and ribs secured at their lowerends and extending between the saws and having upper free ends terminating in the spaces between the saws below the point of entrance to the rollbox and substantially at the point o'l closest approach of the cleaning roller to said saws, there being an unobstructed space from the ends of said ribs into said rolLbo-z traversed by the gin saws.

6. In acotton gin providing a rolhbox, cleaning mechanism located in the breast of the gin comprising, in combination with the gin saws, ribs secured at their lower ends and extending between the saws and having their A er tree ends terminating in the spaces between the saws at a point below the entrance to the roll-box, there being an unobstructed space from the ends of said ribs into said roll-box traversed by the saws, and a cleaning roller rotating in the same direction as the gin saws and in proximity thereto and to the free ends or said ribs.

7. In a cotton gin providing a roll-box, cleaning mechan sm located in the breast of the gin comprising, in combination with the gin saws, ribs secured at their lower endsand extending between the saws and having their upper tree ends terminating in the spaces between the saws and below the entrance from the breast of the gin into the roll-box, there being an unobstructed space from the ones of said ribs into said roll-box traversed by the gin saws, whereby seeds escaping from the roll-box may pass over the ends of said ribs in their passage out of the machine, and a cleaning roller rotating in the same direction as the gin saws and in proximity thereto and to the tree ends of said ribs.

8. In a cotton gin, cleaning mechanism located in the breast of the gin comprising, in combination with the gin saws, ribs secured at their lower ends and ex'ending between the saws and having upper free ends termination in the breast of the gin in the spaces between the saws, a cleaning roller rotating in the same direction as the gin saws and in proximity thereto and to the upper end portions of said ribs, and a hull roller located below said cleaning roller and rotating in the direction of the gin saws, said roller, on its side nearest the gin saws, defining the size ot a passage past the latter for the free escape of hulls and trash from the breast of the gin.

9. In a cotton gin, cleaning mechanism located in the breast of the gin comprising, in combination with the gin saws, ribs secured at their lower ends and extending between the and hz'ving upper free ends terminating in the spaces between the saws, a cleaning roller rotating in the same direction as the gin saws and in proximity thereto and to the free ends of said ribs, a hull roller located beh said cleaning roller and rotating in the direction of the gin saws, said roller, on its side nearest the gin saws, defining the size ot a passage past the latter for the free escape oi halls and trash from the breast of the and means for adjusting said hull roller to ward and from the gin saws.

10. in a cotton gin, cleaning mechanism located in the breast of the gin comprising ribs secured at their lower ends and extending between the saws and having upper {tree ends terminating in the spaces between the saws, a cleaning roller rotating in the same direction as the gin saws and in proximity thereto and to tie free ends of said ribs, a roll roller located below said cleaning roller and rotating in the same direction as said gin saws and in spaced relation thereto, and a feed roller positioned to deliver seed cotton fed into the breast oi the gin onto said hull roller.

In testimony whereof, we have hereunto set our hands.

50321} E. MITCHELL.

ORVl LLE MITCHELL. 

